Bloom.CollectionCreating.NewCollectionWizard.SetNextButtonState C# (CSharp) Method

        public void SetNextButtonState(UserControl caller, bool enabled)
        {
            wizardControl1.SelectedPage.AllowNext = enabled;

            if (caller is KindOfCollectionControl)
            {
                _kindOfCollectionPage.NextPage = _collectionInfo.IsSourceCollection
                                                    ? _collectionNamePage
                                                    : _vernacularLanguagePage;

                if(_collectionInfo.IsSourceCollection)
                {
                    _collectionInfo.Language1Iso639Code = "en";
                }
            }

            if (caller is LanguageIdControl)
            {
                var pattern = L10NSharp.LocalizationManager.GetString("NewCollectionWizard.NewBookPattern", "{0} Books", "The {0} is replaced by the name of the language.");
                // GetPathForNewSettings uses Path.Combine which can fail with certain characters that are illegal in paths, but not in language names.
                // The characters we ran into were two pipe characters ("|") at the front of the language name.
                var tentativeCollectionName = string.Format(pattern, _collectionInfo.Language1Name);
                var sanitizedCollectionName = tentativeCollectionName.SanitizePath('.');
                _collectionInfo.PathToSettingsFile = CollectionSettings.GetPathForNewSettings(DefaultParentDirectoryForCollections, sanitizedCollectionName);

                // An earlier version went direct to finish if the proposed name was OK (unless DefaultCollectionPathWouldHaveProblems || (tentativeCollectionName != sanitizedCollectionName))
                // but per BL-2649 we now want to always let the user check the name.
                _languageLocationPage.NextPage = _collectionNamePage;
            }
        }